u-boot/arch/arm/lib/spl.c
Masahiro Yamada fb8d49cb44 arm: spl: Do not set the stack pointer twice
Because the stack pointer is already set in arch/arm/lib/crt0.S,
we do not need to set it in arch/arm/lib/spl.c.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-09-14 11:14:21 +02:00

58 lines
1.4 KiB
C

/*
* (C) Copyright 2010-2012
* Texas Instruments, <www.ti.com>
*
* Aneesh V <aneesh@ti.com>
* Tom Rini <trini@ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <config.h>
#include <spl.h>
#include <image.h>
#include <linux/compiler.h>
/* Pointer to as well as the global data structure for SPL */
DECLARE_GLOBAL_DATA_PTR;
gd_t gdata __attribute__ ((section(".data")));
/*
* In the context of SPL, board_init_f must ensure that any clocks/etc for
* DDR are enabled, ensure that the stack pointer is valid, clear the BSS
* and call board_init_f. We provide this version by default but mark it
* as __weak to allow for platforms to do this in their own way if needed.
*/
void __weak board_init_f(ulong dummy)
{
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
/* Set global data pointer. */
gd = &gdata;
board_init_r(NULL, 0);
}
/*
* This function jumps to an image with argument. Normally an FDT or ATAGS
* image.
* arg: Pointer to paramter image in RAM
*/
#ifdef CONFIG_SPL_OS_BOOT
void __noreturn jump_to_image_linux(void *arg)
{
unsigned long machid = 0xffffffff;
#ifdef CONFIG_MACH_TYPE
machid = CONFIG_MACH_TYPE;
#endif
debug("Entering kernel arg pointer: 0x%p\n", arg);
typedef void (*image_entry_arg_t)(int, int, void *)
__attribute__ ((noreturn));
image_entry_arg_t image_entry =
(image_entry_arg_t) spl_image.entry_point;
cleanup_before_linux();
image_entry(0, machid, arg);
}
#endif